[  521.517453] bond0: (slave eth0): making interface the new active one
[  521.517547] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.714251] bond0: (slave eth0): Releasing backup interface
[  525.796280] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.002829] bond0: (slave eth0): Releasing backup interface
[  530.024691] bond0 (unregistering): Released all slaves